National Theatre, 1321 E Street Realty Corporation, lessee, Louis A. Lotito, managing director, Ballet Theatre Foundation, Blevins Davis, president presents "Ballet Theatre," Lucia Chase and Oliver Smith, directors, Alicia Alonso, Igor Youskevitch, John Kriza, Mary Ellen Moylan, Gemze de Lappe, Paula Lloyd, Ruth Ann Koesun, Eric Braun, Lillian Lanese, Michael Lland, Anna Cheselka, Jenny Workman, Kelly Brown, Dorothy Scott, Liane Plane, conductor Joseph Levine, regisseur Dimitri Romanoff, assistant conductor Otto Frohn, ballet master Edward Caton. "Pas de Deux, the Black Swan," (Grand Pas de Deux from Act III, "Swan Lake"), choreography after Marius Petipa, music by Peter Tchaikowsky, conductor: Otto Frohn.